ELECTRIC TRANSFORMER OIL

Product Description

Transformer Oil is high quality un-inhibited insulating oil developed for the use in electrical transformers & circuit breakers. It is manufactured through special refining process selecting optimum types of hydrocarbons so that finished transformer oil provides longer service life. It does not contain Poly-Chlorinated Biphenyls (PCBs).

Applications

Transformer Oil is recommended for use in all types of oil filled transformers such as in applications of power generation, transmission & distribution. It can also be used in both large substations or small pole mounted transformers. It is suitable for use in circuit breakers, switches and any other oil immersed electrical equipment.

Performance Standards

IS: 335-1993

Typical Properties 

TRANSFORMER OIL
Corrosive Sulphur	Non-corrosive
Kinematic Viscosity @ 40°C, cSt	9.5-14.5
Flash Point °C, Min (pensky-marten (closed))	140
Break down voltage (New Unfiltered oil)	60
Interfacial tension	0.052
Interfacial tension at 27ºC, N/m	0.044
Oxidation stability
Neutralization value after oxidation, mg KOH/g	0.4
Total sludge after oxidation, % by wt.	0.1
Specific resistance (resistivity)
At 27 ⁰C	350x1012 ohm-cm
At 90 ⁰C	19x1012 ohm-cm
Dielectric dissipation factor at 90 ⁰C	0.0025
Water content, mg/kg (ppm)	50